Bollywood star Aamir Khan has registered a complaint with the Mumbai police in the wake of a defamatory campaign against him on Facebook. The "malicious messages are wrong and baseless", he has said.

Aamir on Saturday met Mumbai police commissioner Rakesh Maria and Joint commissioner (law and order) Sadanand Date. The officials have assured swift investigation and action. The cyber cell of the crime bureau will investigate the case, said an official statement.

Aamir made his TV debut with Sataymev Jayate (SMJ) in May 2012 and the show, dealing with sensitive social issues like female foeticide, domestic violence and child abuse, received a warm welcome from the TV viewers after it went on air on Star Plus. Some of the episodes dealing with female foeticide and malpractices in medical field recorded the highest ratings.

He launched the second season March 2 on STAR India channels with a sensitive issue of rape, and the second episode, beamed Sunday, talked about police force.

It has been alleged in the messages on social networking site that that when at the end of the show, Aamir asks for donations for Humanity Trust, the money is used for masjid construction assistance and placement assistance for Muslim youth.

Aamir took to his Facebook page and clarified that he is associated with Humanity Trust, Hanspukur, West Bengal, not the other Humanity Trust.

He also urged viewers to seek information on all NGOs featured on the show on website Satyameva Jayate.